Products Description
1. Basic information
Definition: Titanium iron is an alloy of titanium (Ti) and iron (Fe), typically containing 30-75% titanium, with the remainder being iron and a small amount of impurities (Al, Si, C, etc.).
Form: Silver gray block or particle (1-50mm), density about 6.0 g/cm ³, melting point 1400-1500 ℃.
Key characteristics: high melting point, strong chemical activity (easy to react with O/N/C), low density (lighter than molten steel, requiring special addition process).
USE
(1) Deoxygenation and Purification
Deep deoxidation: Titanium has a stronger affinity for oxygen than iron (generating TiO ₂), reducing oxide inclusions in steel.
Fixed nitrogen/carbon: forms high melting point TiN (melting point 2950 ℃) and TiC (melting point 3140 ℃) to suppress grain boundary embrittlement.
(2) Grain refinement and control
TiN pinning effect:
Inhibit austenite grain growth at high temperatures (especially for welding steel to prevent coarsening of the heat affected zone).
TiC precipitation strengthening:
Enhance strength in microalloyed steel (such as high-strength low-alloy steel HSLA).
(3) Improve mechanical properties
Enhance toughness: Refine grain size to improve low-temperature impact toughness (key below -40 ℃).
Corrosion resistance enhancement: Titanium stabilized oxide film (Cr Ti composite oxide layer), used for stainless steel (such as 409/439 heat-resistant steel).
(4) Prevent intergranular corrosion
Fixed carbon: TiC is preferentially formed in austenitic stainless steel to prevent Cr ₂ ∝ C ₆ precipitation (avoiding corrosion caused by chromium depletion).
Specification
|
Ferro Titanium index |
|||||||
|
model |
Chemical composition(%) |
||||||
|
Ti |
Al |
Si |
P |
S |
C |
Mn |
|
|
≤ |
|||||||
|
FeTi30-A |
25.0-35.0 |
8.0 |
4.5 |
0.05 |
0.04 |
0.15 |
2.5 |
|
FeTi30-B |
25.0-35.0 |
8.5 |
5.0 |
0.06 |
0.05 |
0.15 |
2.5 |
|
FeTi40-A |
35.0-40.0 |
9.0 |
3.0 |
0.04 |
0.04 |
0.15 |
2.5 |
|
FeTi40-A |
35.0-40.0 |
9.5 |
4.5 |
0.05 |
0.04 |
0.15 |
2.5 |
|
FeTi40-C |
35.0-40.0 |
5.0 |
1.5 |
0.04 |
0.03 |
0.10 |
0.5 |
|
FeTi40-D |
35.0-40.0 |
3.0 |
0.5 |
0.04 |
0.03 |
0.10 |
0.5 |
|
FeTi70-A |
65.0-75.0 |
3.0 |
0.5 |
0.03 |
0.03 |
0.10 |
0.5 |
|
FeTi70-B |
65.0-75.0 |
4.0 |
1.5 |
0.04 |
0.04 |
0.15 |
0.5 |
|
FeTi70-C |
65.0-75.0 |
5.0 |
3.0 |
0.04 |
0.04 |
0.20 |
0.5 |
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